package com.mmall.common;

import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import org.slf4j.LoggerFactory;

import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;

public class TokenCache {
    private static Logger logger = (Logger) LoggerFactory.getLogger(TokenCache.class);
    // LRU 算法
    private static LoadingCache<String,String> loadingCache = CacheBuilder.newBuilder().initialCapacity(1000).maximumSize(10000).expireAfterAccess(12, TimeUnit.HOURS)
            .build(new CacheLoader<String, String>() {
                // 默认的数据加载实现
                @Override
                public String load(String s) throws Exception {
                    return "null";
                }
            });
    public static void setKey(String key,String value){
        loadingCache.put(key,value);
    }

    public static String getKey(String key){
        String value = null;
        try {
            value = loadingCache.get(key);
            if (value.equals("null")){
                return null;
            }
            return value;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }


}
